CN113483908A

CN113483908A - Temperature sensor

Info

Publication number: CN113483908A
Application number: CN202110804756.1A
Authority: CN
Inventors: 杨杰; 姜帆; 刘清惓; 葛祥建; 丁仁惠; 薛贵璐
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-10-08
Anticipated expiration: 2041-07-16
Also published as: CN113483908B

Abstract

The invention discloses a temperature sensor, which comprises a base, wherein the top of the base is fixedly connected with two support columns, a motor switch and a motor fixing frame, the top of each support column is fixedly connected with a first flow guide light shield, the top of each first flow guide light shield is fixedly connected with three first heat-insulating fixing rods and three fixing columns, the tops of the three first heat-insulating fixing rods are fixedly connected with a first flow guide device, the tops of the three fixing columns are fixedly connected with a second flow guide light shield, an electric heating layer is arranged inside the second flow guide light shield, the bottom of the second flow guide light shield is fixedly connected with a second heat-insulating fixing rod, the first flow guide device and the second flow guide device are of curved surface structures, air flow can be further guided to flow to a temperature-sensing probe, the air flow speed around the temperature-sensing probe is effectively improved, the surfaces of the first flow guide device and the second flow guide device are plated with high-reflection materials, and various radiations can be effectively reflected, the radiation heat is reduced, and the influence of heat conduction on the temperature-sensitive probe is reduced.

Description

Temperature sensor

Technical Field

The invention relates to the technical field of electronics and information engineering, in particular to a temperature sensor.

Background

Because various radiations such as direct solar radiation, reflected radiation, scattered radiation, long-wave radiation and the like can affect the measurement of the temperature sensor for meteorological observation, the temperature sensor is usually installed in a louver box or a radiation-proof cover in the current meteorological station so as to prevent various radiations from directly irradiating the temperature sensor. However, since the white coatings on the surfaces of the louver box and the radiation shield are difficult to completely block various radiations, the louver box and the radiation shield still generate radiation temperature rise, and further the ambient air flows into the louver box and the radiation shield after being heated, so that the temperature sensor generates measurement errors. In addition, the blades of the louver and the ring plates of the radiation shield can block the air flow, and the measurement error can be further increased and the response speed of the sensor can be further reduced. A good design of a meteorological temperature sensor should not only avoid as much exposure of the temperature sensor to various radiations as possible, but also increase as much as possible the air flow velocity around the temperature sensor. The two design requirements are difficult to meet simultaneously, which brings difficulty to the improvement of the performance of the meteorological temperature sensor, and therefore, the temperature sensor is provided.

Disclosure of Invention

The present invention is directed to a temperature sensor to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a temperature sensor comprises a base, wherein the top of the base is fixedly connected with two support columns, a motor switch and a motor fixing frame, the top of each support column is fixedly connected with a first flow guide light shield, the top of each first flow guide light shield is fixedly connected with three first heat-insulation fixing rods and three fixing columns, the tops of the three first heat-insulation fixing rods are fixedly connected with a first flow guide device, the tops of the three fixing columns are fixedly connected with a second flow guide light shield, an electric heating layer is arranged inside the second flow guide light shield, the bottom of the second flow guide light shield is fixedly connected with a second heat-insulation fixing rod, the lower end of the second heat-insulation fixing rod is fixedly connected with a second flow guide device, the tops and the bottoms of the first flow guide device and the second flow guide device are respectively provided with an air outlet, and the inner side of the bottom of the second flow guide device is fixedly connected with a heat-insulation suspension rod, the bottom fixedly connected with temperature sensing probe of thermal-insulated pole that hangs, two the equal fixedly connected with slide rail in the outside of pillar, one side sliding connection of slide rail has the slider, one side fixedly connected with connecting rod of slider, two the one end fixedly connected with protection casing that the slider was kept away from to the connecting rod.

Preferably, a plurality of pinholes are formed in the top of the second diversion light shield, and high-light-reflection materials are plated on the bottom of the first diversion light shield and the top of the second diversion light shield.

Preferably, the high-reflectivity material is a silver-colored reflective coating.

Preferably, the top of the first guide light shield and the bottom of the second guide light shield are coated with matte light absorption layers.

Preferably, the heat insulation suspension rod is made of plastic and asbestos materials in a mixed mode.

Preferably, one side fixedly connected with servo motor of motor mount, servo motor's output shaft top is through shaft coupling fixedly connected with lead screw, lead screw and connecting rod threaded connection, the top fixedly connected with stopper of lead screw.

Preferably, the bottom of base has been seted up the cell body, the cell body inboard is equipped with pressure sensors, the cavity has been seted up to the inside of pillar, the inside fixedly connected with portable power source and the relay of cavity, pressure sensors's output and relay control current input electric connection, portable power source's power output end links to each other with the power input electric property of relay, the output and the electric heat layer electric property of relay link to each other, portable power source's power output end and motor switch's the end electric connection that advances, motor switch's power output end and servo motor's power input electric connection.

Preferably, the top of protection casing fixedly connected with rubber circle, the diameter of the top of rubber circle is less than the diameter of first water conservancy diversion lens hood.

Compared with the prior art, the invention has the beneficial effects that:

1. the first diversion light shield and the second diversion light shield are of streamline curved surface structures and can guide airflow to flow to the temperature sensing probe, the high-reflecting material at the bottom of the first diversion light shield can block underlay surface reflection radiation and long-wave radiation to a large extent, the high-reflecting material at the top of the second diversion light shield can block direct solar radiation to a large extent, and the top of the first diversion light shield and the matt surface light absorption layer at the bottom of the second diversion light shield can effectively reduce the influence of various kinds of radiation inside the entering device on secondary radiation caused by the temperature sensing probe.

2. The first flow guide device and the second flow guide device are of curved surface structures, air flow can be further guided to flow to the temperature sensing probe, the air flow speed around the temperature sensing probe is effectively improved, the surfaces of the first flow guide device and the second flow guide device are plated with high-reflectivity materials, various radiations can be effectively reflected, the radiant heat is reduced, and therefore the influence of heat conduction on the temperature sensing probe is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of a second deflector of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic view of the structure of area A in FIG. 4 according to the present invention;

FIG. 6 is a schematic structural diagram of the region B in FIG. 1 according to the present invention.

In the figure: 1. a base; 2. a pillar; 3. a first light guide hood; 4. a first heat-insulating fixing rod; 401. a second heat-insulating fixing rod; 5. a first flow guide device; 6. a second flow guide device; 7. a thermally insulating hanger bar; 8. a temperature sensing probe; 9. fixing a column; 10. a second light guide hood; 11. a cavity; 12. a mobile power supply; 13. a relay; 14. a trough body; 15. a pressure sensor; 16. a pinhole; 17. an electric heating layer; 18. a slide rail; 19. a slider; 20. a connecting rod; 21. a servo motor; 22. a screw rod; 23. a protective cover; 24. a motor switch; 25. a limiting block; 26. a rubber ring; 27. motor mount.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides a technical solution: a temperature sensor comprises a base 1, wherein the top of the base 1 is fixedly connected with two support columns 2, a motor switch 24 and a motor fixing frame 27, the top of each support column 2 is fixedly connected with a first diversion shade 3, the top of each first diversion shade 3 is fixedly connected with three first heat-insulation fixing rods 4 and three fixing columns 9, the top of each first heat-insulation fixing rod 4 is fixedly connected with a first diversion device 5, the top of each fixing column 9 is fixedly connected with a second diversion shade 10, an electric heating layer 17 is arranged in each second diversion shade 10, the bottom of each second diversion shade 10 is fixedly connected with a second heat-insulation fixing rod 401, the lower end of each second heat-insulation fixing rod 401 is fixedly connected with a second diversion device 6, the top and the bottom of each first diversion device 5 and the bottom of each second diversion device 6 are respectively provided with an air outlet, and the inner side of the bottom of each second diversion device 6 is fixedly connected with a heat-insulation suspension rod 7, the bottom of the heat insulation suspension rod 7 is fixedly connected with a temperature-sensitive probe 8, the outer sides of the two support columns 2 are fixedly connected with a slide rail 18, one side of the slide rail 18 is connected with a slide block 19 in a sliding manner, one side of the slide block 19 is fixedly connected with a connecting rod 20, one end of the two connecting rods 20 far away from the slide block 19 is fixedly connected with a protective cover 23, the first flow guide device 5 and the second flow guide device 6 are of a curved surface structure and can further guide airflow to the temperature-sensitive probe 8, so that the airflow speed around the temperature-sensitive probe 8 is effectively improved, three fixing columns 9 fixedly connected between the first flow guide light shield 3 and the second flow guide light shield 10 are distributed in a shape like a Chinese character 'pin', a first heat insulation fixing rod 4 fixedly connected between the first flow guide light shield 3 and the first flow guide device 5 and a second heat insulation fixing rod 401 fixedly connected between the second flow guide device 6 and the second flow guide light shield 10 are distributed in a shape like a Chinese character 'pin', the stability of multiplicable whole device structure plays certain thermal-insulated effect simultaneously, reduces the influence of heat conduction to temperature-sensing probe 8, hangs pole 7 fixed connection through thermal-insulated between temperature-sensing probe 8 and the second guiding device 6, and thermal-insulated hanging pole 7 is the body of rod of making is mixed to plastics and asbestos material, can effectively reduce the influence of heat conduction to temperature-sensing probe 8.

The top of the second diversion shade 10 is provided with a plurality of pinholes 16, the bottom of the first diversion shade 3 and the top of the second diversion shade 10 are both plated with high-reflection materials which are silver-colored reflective coatings, the top of the first diversion shade 3 and the bottom of the second diversion shade 10 are both coated with matt light absorption layers, the heat-insulating suspension rod 7 is made of plastic and asbestos materials in a mixing manner, the high-reflection materials at the bottom of the first diversion shade 3 can largely block the underlying surface reflective radiation and the long-wave radiation, the high-reflection materials at the top of the second diversion shade 10 can largely block the direct solar radiation, the matt light absorption layers at the top of the first diversion shade 3 and the bottom of the second diversion shade 10 can effectively reduce the influence of various radiation inside the device on the secondary radiation caused by the temperature sensing probe 8, and rainwater at the top of the second diversion shade 10 can be discharged from the pinholes 16 in rainy days, effectively use manpower sparingly the clearance.

One side fixedly connected with servo motor 21 of motor mount 27, shaft coupling fixedly connected with lead screw 22 is passed through on servo motor 21's the output shaft top, lead screw 22 and connecting rod 20 threaded connection, the top fixedly connected with stopper 25 of lead screw 22, when the device need be transported or temporarily not use and will store, can protect the important component part on device upper portion through protection casing 23, open servo motor 21 through motor switch 24, servo motor 21 operates and drives lead screw 22 and rises protection casing 23 to the device upper portion, effectively prevent that device upper portion from receiving external force striking and damaging.

The bottom of the base 1 is provided with a groove body 14, the inner side of the groove body 14 is provided with a pressure sensor 15, the inner part of the strut 2 is provided with a cavity 11, the inner part of the cavity 11 is fixedly connected with a mobile power supply 12 and a relay 13, the output end of the pressure sensor 15 is electrically connected with the control current input end of the relay 13, the power output end of the mobile power supply 12 is electrically connected with the power input end of the relay 13, the output end of the relay 13 is electrically connected with an electric heating layer 17, the power output end of the mobile power supply 12 is electrically connected with the power input end of a motor switch 24, the power output end of the motor switch 24 is electrically connected with the power input end of a servo motor 21, when snowing in winter, the second diversion shade 10 can have a large amount of snow, the pressure sensor 15 senses the weight of the snow, the relay 13 is electrified to attract the electric heating layer 17 to work, and the snow on the top of the second diversion shade 10 is melted, the needle holes 16 are used for removing, so that manpower is effectively saved, and the mobile power supply 12 provides electric energy for the electric heating layer 17 and the servo motor 21. Can control electric heat layer 17 through portable power source 12, relay 13 and pressure sensors 15's cooperation and open and stop, realize intellectuality, motor switch 24 is waterproof design, prevents effectively that the rainwater from soaking the internal circuit part, opens through the steerable servo motor 21 of motor switch 24 and stops.

The top fixedly connected with rubber circle 26 of protection casing 23, the top bore of rubber circle 26 is less than the diameter of first water conservancy diversion lens hood 3, and rubber circle 26 effectively prevents the rainwater drenching servo motor 21 during the rainy day, because the rubber circle 26 material is softer when protection casing 23 needs to rise, can take place to warp when pushing up first water conservancy diversion lens hood 3, does not influence first water conservancy diversion lens hood 3 and rises.

Working principle or structural principle, when in use, the first flow guiding device 5 and the second flow guiding device 6 are in curved surface structures, and can further guide airflow to the temperature-sensing probe 8, so as to effectively improve the airflow speed around the temperature-sensing probe 8, the three fixing columns 9 fixedly connected between the first flow guiding light shield 3 and the second flow guiding light shield 10 are distributed in a shape like Chinese character 'pin', the first heat-insulating fixing rod 4 fixedly connected between the first flow guiding light shield 3 and the first flow guiding device 5 and the second heat-insulating fixing rod 401 fixedly connected between the second flow guiding device 6 and the second flow guiding light shield 10 are distributed in a shape like Chinese character 'pin', so that the stability of the whole device structure can be increased, a certain heat-insulating effect can be achieved, the influence of heat conduction on the temperature-sensing probe 8 can be reduced, the temperature-sensing probe 8 and the second flow guiding device 6 are fixedly connected through the heat-insulating suspension rod 7, the heat-insulating suspension rod 7 is made of plastics and asbestos, the influence of heat conduction on the temperature-sensitive probe 8 can be effectively reduced; the high-reflectivity material at the bottom of the first diversion shade 3 can block radiation reflected by the underlying surface and long-wave radiation to a large extent, the high-reflectivity material at the top of the second diversion shade 10 can block direct solar radiation to a large extent, and the matte light absorption layers at the top of the first diversion shade 3 and the bottom of the second diversion shade 10 can effectively reduce the influence of various radiations entering the device on secondary radiation caused by the temperature-sensitive probe 8; when the device needs to be transported or is temporarily not used for storage, important components on the upper part of the device can be protected through the protective cover 23, the servo motor 21 is started through the motor switch 24, the servo motor 21 operates to drive the screw rod 22 to lift the protective cover 23 to the upper part of the device, and the upper part of the device is effectively prevented from being damaged due to external impact; when snowing in winter, the second diversion shade 10 has a large amount of snow, and pressure sensors 15 sense the weight of snow, and relay 13 gets electric actuation electric heat layer 17 and begins work, melts the snow at second diversion shade 10 top, discharges through pinhole 16, effectively uses manpower sparingly the clearance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A temperature sensor, comprising a base (1), characterized in that: the air conditioner is characterized in that the top of the base (1) is fixedly connected with two support columns (2), a motor switch (24) and a motor fixing frame (27), the top of each support column (2) is fixedly connected with a first diversion shade (3), the top of each first diversion shade (3) is fixedly connected with three first heat-insulation fixing rods (4) and three fixing columns (9), the top of each first heat-insulation fixing rod (4) is fixedly connected with a first diversion device (5), the top of each fixing column (9) is fixedly connected with a second diversion shade (10), an electric heating layer (17) is arranged inside each second diversion shade (10), the bottom of each second diversion shade (10) is fixedly connected with a second heat-insulation fixing rod (401), the lower end of each second heat-insulation fixing rod (401) is fixedly connected with a second diversion device (6), and air outlets are formed in the tops and bottoms of the first diversion device (5) and the second diversion device (6), the heat insulation suspension rod (7) is fixedly connected to the inner side of the bottom of the second flow guiding device (6), the temperature sensing probe (8) is fixedly connected to the bottom of the heat insulation suspension rod (7), two sliding rails (18) are fixedly connected to the outer sides of the supporting columns (2), a sliding block (19) is slidably connected to one side of each sliding rail (18), a connecting rod (20) is fixedly connected to one side of each sliding block (19), and a protective cover (23) is fixedly connected to one end, far away from the corresponding sliding block (19), of each connecting rod (20).

2. A temperature sensor according to claim 1, wherein: the top of the second diversion light shield (10) is provided with a plurality of pinholes (16), and the bottom of the first diversion light shield (3) and the top of the second diversion light shield (10) are plated with high-light-reflection materials.

3. A temperature sensor according to claim 2, wherein: the high-reflectivity material is a silver-colored reflective coating.

4. A temperature sensor according to claim 1, wherein: the top of the first diversion shade (3) and the bottom of the second diversion shade (10) are coated with matte light absorption layers.

5. A temperature sensor according to claim 4, wherein: the heat insulation suspension rod (7) is made of plastic and asbestos materials in a mixed mode.

6. A temperature sensor according to claim 1, wherein: one side fixedly connected with servo motor (21) of motor mount (27), shaft coupling fixedly connected with lead screw (22) is passed through on the output shaft top of servo motor (21), lead screw (22) and connecting rod (20) threaded connection, the top fixedly connected with stopper (25) of lead screw (22).

7. A temperature sensor according to claim 6, wherein: cell body (14) have been seted up to the bottom of base (1), cell body (14) inboard is equipped with pressure sensors (15), cavity (11) have been seted up to the inside of pillar (2), the inside fixedly connected with portable power source (12) and relay (13) of cavity (11), the output and relay (13) control current input electric connection of pressure sensors (15), the power output of portable power source (12) links to each other with the power input electric property of relay (13), the output and the electric heat layer (17) electric property of relay (13) link to each other, the power output of portable power source (12) and the incoming end electric connection of motor switch (24), the power output of motor switch (24) and the power input electric connection of servo motor (21).

8. A temperature sensor according to claim 1, wherein: the top fixedly connected with rubber circle (26) of protection casing (23), the diameter of the top bore of rubber circle (26) is less than the diameter of first water conservancy diversion lens hood (3).